Sand-mold jacket



C. 0. WOOD.

SAND MOLD JACKET.

APPLICATION FILED FEB-4.19M.

1L 1 93,1 U3 Patenteu Aug. 1, 1916.

3 SHEETS-SHEET C. 0. WOOD.

SAND MOLD JACKET.

APPLICATION FILED FEB. 4. 1914.

1,1931%. PatentedAug. 1,1916.

3 SHEETS-SHEET 2.

' 5 J7 1 Z6 1 W qwmeooao c. 0. WOOD. SAND MOLD JACKET.

APPL l4- R 1 9., 1 U3 Patented Aug. 1, 1916.

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CHARLES 0. WOOD, OF CHAMBERSBUBG, PENNSYLVANIA.

SAND-MOLD JACKET.

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Specification of Letters Patent.

Patented Aug. l, 1916.

Application filed February 4, 1914. Serial No. 816,506.

To all whom it may concern lie it known that 1, CHARLES O. VVOOD, a citizen of the United States, residing at Chambcrsburg, in the county of Franklin and State of Pennsylvania, United States of America, have invented certain new and useful Improvements in Sand-Mold Jackets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to sand mold jackets, and has for its object to provide a sufliciently rigid jacket for use on said molds, while permitting a certain amount of variation in the size of the jacket, so that said jacket will automatically compensate for inaccuracies of dimensions between the sand molds produced by different flasks supposedly of the same size, and for slight variations in the dimensions of the jackets, also supposedly of the same size, and at the same time permit universal movement of one acket side with respect to the other.

A further object is to provide means at the corners of the jacket for closing the gap necessarily present at said corners when independently movable jacket sides are em ployed, and also to provide for limiting the swing of the sides of the jackets on their iorizontal axis.

Referring to the drawings, in which like parts are similarly designated-Figure 1 is a plan view partly in section of one form of jacket embodying my invention. Fig. 2 is an elevation thereof. Fig. 3 is a partial plan view, partly in section, showing the corner fillets. Fig. 4: is a vertical section showing the application of the fillets to the jacket illustrated in Figs. 1 and 2. Fig. 5 is a plan view, and Fig. 6 an elevation showing the fillets positioned in the rabbets in the ends of adjacent sides. Fig. 7 1s a perspective view, and Fig. 8 is a section thereof, showing a modification. Fig. 9 shows a modified form of fillet. Fig. 10 shows a form of jacket when the lugs on both ends are equally spaced.

The invention as exemplified in Figs. 1 and 2 comprises a sand mold jacket having a plurality of sides, and means for connecting two or more sides together to permit, without adjustment, the alteration of the relative inclination of the sides, the size, or shape, or both size and shape, of the space inclosed by said sides, whereby the jacket will be automatically accommodated to vanations of a sand mold, together with means to limit the relative inclination of the sides. The jacket illustrated in said Figs. 1 and 2 has cast iron sides, 1 and 2, and the opposite sides, or all the sides, may be provided with handles 3, preferably, but not necessarily, of wood. These handles are secured in place by means of screws 4:, preferably countersunk in the sides, so that their heads will be flush with the inner face of the jacket.

Each side of the jacket has a pair of limit lugs at each end, the preferred form being a lug 7 at the upper, and a similar lug at the lower edge of one end of the side, while at the other end of the side the two lugs 8 are nearer the middle of the side and pass between the wider spaced lugs 7 of an adj acent side.

Loosely passing through the perforation in the ears 6 is a bolt 9 held in place by nuts 10, which nuts determine the distance apart of the ears. Threaded on the bolt 9 is a spring 11 having sufficient tension to urge the lugs 6 apart under all conditions of op eration. These springs hold the frame sulficiently rigid for easy manipulation, and at the same time permit all the necessary relative movements and adjustments between the sides that are required for proper operation, but under most conditions will allow the sides to swing on a horizontal axis to too great an extent, and for this reason I employ the limit lugs 7 and 8, that mutually limit the swing of adjacent sides at the corners. This limitation by the lugs is effected to a greater extent than the limitation of the swing of the sides on their horizontal axes by the bolts 9 loosely passing through the ears 6.

Thus it will be seen that if the sand mold to which the jacket is to be applied is slightly wider or shorter, or bothwider and shorter than the normal size of jacket at one or two sides, the jacket will automatically accommodate itself 0r distort a small amount, so that it can be applied to difi'ering sizes and shapes of molds from different flasks, supposedly of the same dimensions.

While the jackets are automatically adjustable within limits, to enable them to accommodate themselves to various deviations from the intended shape and size of the mold, such automatic variations are incident to the normal size of the jacket. This normal size of the jacket can be changed by adjusting the nuts 10 on the bolts 9, so as to increase or diminish the normal size of the jacket and still maintain all the advantageous accommodation of the enlarged or diminished size of jacket to a mold differing from the normal size to an extent beyond the limits of the automatic adjustability of the jacket.

While I have illustrated the sides as having wide spaced lugs at one end and narrow spaced lugs at the other end, it is evident that one side may have the lugs at both ends spaced wide, and the adjacent sides with the lugs at both ends spaced narrow, as illustrated in Fig. 10 without departing from the invention, it being immaterial what arrangement of lugs is chosen so long as the lugs on the ends of each jacket side at a corner extend over, in front of or past the end of the adjacent acket side.

In the form shown in Figs. 1 and 2, it will be noted that the sand will not be supported along the entire corners and more particularly at the space between the narrowly spaced lugs 8, and for this reason I make use of corner pieces or fillets 12, as shown in Fig. 3, in which figure the spring 11, shown in Fig. 1, is omitted, and the function of this spring is performed by other springs hereinafter described.

On the bolt 9 I mount a sheet metal saddle 13, having a curved central seat portion it for seating on the bolt. The fillet 12 is provided with two screws 15 passing through the corner opening between the lugs 8, one on each side of the bolt 9, and also passing through the saddle 13. These screws are held in place by means of nuts 16 on their outer end, which bear against coil springs 17 between the nuts 16 and and the saddle 13. The springs 17 are under tension and urge the screws or bolts 15 outward, thereby drawing the fillet 12 against two adjacent sides 1 and 2 at the corners, and if these springs are strong enough they urge these sides apart to the limit determined by the nuts 10 on the bolt 9. In some instances, where the jacket is large and heavy, the springs 17 may be too light to perform their double function, and I then use in conjunction therewith the spring 11, Fig. 1, in which case the seat portion 1 1 of the saddle 13, Fig. 1, is made larger, so that it will conform to and seat on the spring 11. The fillet 12 is countersunk in the rabbeted ends of the jacket sides.

In Fig. 5 I have shown the lugs 7 and 8' omitted and the fillet 12 seated in rabbets 18 whose walls 19. operate to limit the movement of the sides with respect to one another, similar to the lugs 7 and 8.

In Figs. 7 and 8 I have shown the sides 1 and 2 provided with but a single ing 20 at each end, which lugs are arranged at opposite edges of a side, so that adjacent sides will have a lug 20 at the top of the corner and a lug 20 at the bottom of the corner, as illustrated in Fig. 7. The intervening space at the corners is filled, preferably with a rectangular block 21, one face (I, of which is opposite the end of side 1 and the other face Z) of which is opposite the end of side 2.

The corner of the block toward the inside of the jacket is cut away, as at c to preserve the proper contour of the inside of the jacket.

Seated on the bolt 9 is a pin 22 for bolding a spring 23 in a recess 24L in the block 21, which spring urges the block 21 between the ends of the two adjacent sides at a corner, thereby tending to urge these sides apart at a distance determined by the nuts 10 on bolt 9.

In Fig. 8 the pin 22 is shown seated directly on the bolt 9, in a manner corresponding to the saddle let, Fig. 5, but where it is necessary or preferred, the bolt 9 may have a coil spring thereon and the pin seat on said spring corresponding to saddle 11- seated on spring 11 in Fig. 1.

The operation of the structure shown in Figs. 7 and S is such that the filler member or block 21 is pushed toward the interior of the jacket by spring 23, and thus urges the loo sides 1 and 2 apart, the operation being directly opposite that of the structure shown in Figs. 3, 1, and 5, where the filler member or fillet 12 is pulled from the inside of the jacket toward the outside by spring 17, to urge the sides 1 and 2 apart. loth structures accomplish the same result.

In Fig. 9 the fillet 12 is concave, and has thinner edges than the fillet 12 shown in Figs. 36, but I do not limit myself to any particular form of corner filling member, so long as its operation will ellect the purpose of supporting the same at the corner of the jacket.

I claim 1. A sand mold jacket comprising a plurality of sides and means connecting two or more sides together to permit without adjustment, and automatically, the alteration of the relative inclination of the sides, the size or shape,- or both size and shape of the space inclosed by said sides, and additional means for limiting the movement of the sides relatively to one another.

2. In a sand mold jacket, the combination with sides, of a connection between two adjacent sides at one or more corners, permit ting relative movement in more than one plane, and lugs for limiting the swing of the sides on the longitudinal axes.

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3. In a sand mold jacket, the combination with sides, of a connection between two adjacent sides at one or more corners permitting relative movement in more than one plane, and means for limiting one of said movements to a greater extent than limited by said connection.

a. In a sand mold jacket, the combination with sides, oi a connection between two ad jacent sides at one or more corners permit ting universal movement of the sides, and means to close the space at said corners.

In a sand mold acket, the combination with sides, of a connection between two adjacent sides at one or more corners permit ting universal movement of the sides with respect to one another, and means to close the space between adjacent sides at said corner, said means cooperating with the sides to limit their swing about longitudinal axes.

(3. in a sand mold jacket, the combination with sides and a connection between two adjacent sides at one or more corners permitting universal movement of the sides with respect to one another, of means on the sides to limit their swing on their longitudinal axes, and a corner filler arranged to cooperate with the sides to also limit their swing on a longitudinal axis.

7. ln a sand mold jacket corner connection, perforated ears on adjacent ends of adjacent jacket sides, a bolt loosely passing through the perforations in said ears, and a spring on the bolt between the ears to urge them apart, thereby permitting universal movement of one side with respect to the other.

8. In a sand mold jacket corner connection, perforated ears on adjacent ends of adjacent jacket sides, a bolt loosely passing through the perforations in said ears, a spring on the bolt between the ears, and a corner filler.

9. In a sand mold jacket corner connection, peforated ears on adjacent ends of adjacent jacket sides, a bolt loosely passing through the perforations in said cars, a spring on the bolt between the ears, and lugs on the ends of each jacket side extending over the end of its adjacent side.

10. lln a sand mold jacket corner connection, the combination with the adjacent rabbeted ends of adjacent jacket sides, of perforated ears on said adjacent ends, abolt loosely passing through the perforations in said ears, a spring on said bolt between the ears, and a corner filler seating in the rabbeted ends of the adjacent sides.

11. lln a sand mold jacket corner connection, the combination with the adjacent rabbeted ends of adjacent jacket sides, of perforated ears on said ends, a bolt loosely passing through the perforations in said ears, a corner fillet seating in said rabbeted ends, screws in said fillet extending on each side of said bolt, a saddle on the bolt and through which said screws pass, nuts on the ends of the screws, and springs on the screws between the nuts and saddle.

12. In a sand mold jacket corner connection, the combination with adjacent rabbeted ends of adjacent jacket sides; of perforated ears on said ends, a bolt loosely passing through the perforations, a spring on the bolt between the ears, lugs on said ends, the lugs of one side extending over the end of the adjacent side, a corner fillet, screws in the fillet extending beyond the bolt, a saddle through which the screws eX- tend, nuts on the ends of the screws and springs on the screws between the nuts and saddle.

13. An adjustable sand mold acket, com prising sides, means to pivotally connect the sides together at the corners of the jacket and lugs on the ends of said sides mutu: lly projecting across each other and so arranged as to limit the swin of the sides.

M. An adjustable sand mold jacket, comprising sides, means into mediate the upper and lower edges of the sides at the corners of the jacket to pivotally connect the adjacent sides at said corners, devices above said means and similar devices below said means on the end oi each adjacent side mutually projecting across and beyond each other.

15. in an adjustable sand mold acket, the combination with the two ends of two adj acent sides at a corner, of a pivotal connection for said ends, means above said connection on each of said ends mutually overlapping one another to limit the swing of the sides in one direction toward one another and similar overlapping means below the connection to limit the swing of the sides in an opposite direction.

16. In an adjustable sand mold jacket, a pivotal corner connection including means for varying the normal area of the jacket.

17. adjustable sand mold jacket comprising sides, means to pivotally connect the sides at the corners of the jacket, said sides having cooperating means at their adjacent ends to limit the swing of the upper and lower edges of said sides to and from one another.

18. A. sand mold jacket having automatically adjustable sides, means at the corners of the jacket to connect the sides together while permitting said adjustability, and means for limiting the movements of the sides with respect to one another.

19. A sand mold jacket having sides selfadjusting to the sand mold and a corner filler.

20. A sand mold jacket having sides, lugs on the sides and bolts passing through the lugs to permit the sides to swing on a substantially horizontal longitudinal axis.

21. A sand mold jacket having sides, lugs on the sides and bolts passing through the lugs permitting the sides to swing thereon, and means to normally hold the lugs in their operative relation.

22. An adjustable casing for molds comprising side and end members and means pivot-ally connecting their adjacent ends and affording longitudinal bearings at the ends of said sides on which said members are adapted to turn.

' 23. An adjustable casing for molds com prising side and end members and means pivotally connecting their adjacent ends centrally of their height and affording longitudinal hearings on which said members are adapted to turn.

24. An adjustable casing for molds comprising side and end members, means pivotally connecting their adjacent ends and affording longitudinal bearings on which said members are adapted to turn, and means for Varying the area of said casing.

25. An adjustable sand mold jacket comprising sides, means to pivotally connect the sides together at the corners of the jacket sociated to turn on longitudinal axes, said side and end members having at each of their ends a plurality of extensions mutually projecting across and beyond each other.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

' CHARLES O. VOOD. \Vitnesses:

G120. M. NAYLOR, CLAY L. HnNNiNenn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

